| Question | Answer |
| Main source of calcium is | |
| Vitmain D is also made from cholesterol here | |
| In the liver, vit D is converted to this | |
| In the kidney, vit D is converted to this | |
| Also known as... | |
| In the gut, vit D increases absorption of this | |
| In the gut, vit D increases absorption of this | |
| Vit D deficiency may be caused by... | |
| Vit D deficiency may be caused by... | |
| Vit D deficiency may be caused by... | |
| Vit D deficiency may be caused by... | |
| Hormone release in responce to low calcium levels which may result from Vit D deficiency | |
| This hormone upregulates this enzyme in the kidney | |
| Mineralisation of bone fails, in adults this results in | |
| Mineralisation of bone fails, in children this results in | |